Quantum Circuit to inverse the probability distribution

Question

I'm using Qiskit and after running the circuit, as we all know, we get a count dictionary such as

{'0000': 66,
 '0001': 71,
 '0010': 68,
 '0011': 70,
 '0100': 77,
 '0101': 64,
 '0110': 64,
 '0111': 51,
 '1000': 52,
 '1001': 67,
 '1010': 43,
 '1011': 64,
 '1100': 61,
 '1101': 59,
 '1110': 73,
 '1111': 74} 

Here the minimum count is 1010:43. I want the same output just reversed [1024-(count)]. I know this can be achieved by few lines of python, but I was curious if this is possible to do with a quantum circuit?

Answer 1

There is no a way in Qiskit to get the results in that format. So, you will have to go for the pure Python way:

counts = {'0000': 66, '0001': 71, '0010': 68, '0011': 70,
          '0100': 77, '0101': 64, '0110': 64, '0111': 51,
          '1000': 52, '1001': 67, '1010': 43, '1011': 64,
          '1100': 61, '1101': 59, '1110': 73, '1111': 74} 

shots = 1024
counts = { k:(shots-v) for k,v in counts.items()}